YIELDING MINE ARCHES,申请号GB19780019403-传众专利搜索

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发明名称	YIELDING MINE ARCHES
摘要
申请公布号	GB1601030(A)	申请公布日期	1981.10.21
申请号	GB19780019403	申请日期	1978.05.12
申请人	BOCHUMER EISENHUETTE HEINTZMANN GMBH & CO	发明人
分类号	E21D11/18;(IPC1-7):E21D11/22	主分类号	E21D11/18
代理机构		代理人
主权项
地址

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